hultgren



A. G. E. HULTGREN. MEANS FOR REMOVING HARDENED ANNULAR BODIES FROM THE HARDENING LIQUID.

APPLICATION FILED DEC.22.19H-

Patented July 1, 1919.

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INVENTOR By A iiorneys,

WITNESS A; c. E. HULTGREN.

MEANS FOR REMOVING HARDENED ANNULAR BODIES FROM THE HARDENING LIQUID. APPLICATION FILED DEC.22I I9Il.

1,308,077. Patented July 1, 1919.

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AKTIEBOLAGET SVENSKA KULLAQEBFABRIKEN, OF GOTTENZBQBG, SWEDEN,

A CORPORATION OF SWEDEN.

Specification of Letters Patent. Patented July 1, 1919.

Application filed December 22, 1917. Seriallio. 208,494.

To all whom it may concern:

'Be it known that I, AXEL GUs'rAF EMAN- UEL HULTGREN, a subject of the King of 'Sweden, residing at Gottenborg, Sweden, have invented certain new and useful Improvements in Means for Removing Hardened Annular Bodies from the Hardening Liquid, of which the following is a specifi: cation, reference being had to the drawlng accompanying and forming apart thereof.

This invention relates to means for removing hardened annular bodies from the hardening liquid, and particularly such means in combination with a hardenlng device in which the rings roll on an incline into the hardening liquid.

The invention consists, chiefly, in so form-' ing the lower part of the incline that the rolling motion of the rings ceases and the rings are caused to slide in a lying position. The removal of the rings from the hardening liquid is, preferably, performed by a simple continuous conveying mechanism.

In the drawing, one form of the means for carrying out the invention is shown, Figure 1 is a side view of the incline and the device for removing the hardened articles from .the hardening liquid. Fig. 2 is a plan view thereof. Fig. 3 shows, on an enlarged scale, the lower part of the incline. Fig. 4 shows transverse sections on the lines A-B, O- C, O-D, O--E, O-F, OG, OH and O-J of Fig. 3. The line MM of Fig. 4 corresponds to the line denoted by the same letters in Fig. 1 and serves to illustrate the-relative position of the several sections in the vertical direction. Fig. 5 is a sectional view on line 55 of Fig. 2, and Fig. 6 is a detail perspective view of a modified form of track for the ring bodies.

In the drawing, 1 designates the incline on which the rings 2 to be hardened are caused to roll into the hardening liquid. The lower part of the incline, which is immersed in the hardening liquid, is shown bent or curved laterally and has, preferably, the form of a laterally inclined screw thread, as shown 'in Fig. 4.

Fitting closely to the curved part of the incline and forming a continuation thereof is an extension forming an angle with the former. In order to save room, the said about 180, if viewed in plan.

The curved part of the incline serves to check the rolling motion of the rings, to which end it is bent upward to the required height, as shown at 4. If desired, it may be 'bent so as to form a roof. The curved part of the incline also serves to tilt the rings and to impart to them a sliding movement toward the side.

After the rings have begun to slide, they are guided by the upstanding edges of the extension or'lower part of the incline down to the end thereof. The said end 5 bears on the transport band 6 of a conveying mechanism and is provided with a notch or aperture 7 (Fig. 2) through which pass the pins 3 or the like of the transport band. When the hardened rings 2 reach the said notch 1n the incline, they are grasped by the pins 3, one after the other, and removed from the hardening liquid and placed on an inclined track 9, from whence they are brought to the collecting place.

The upper part of the incline 1 is, suitably, provlded with guiding grooves for the rings, as shown in Fig. 2. Said grooves may be formed by U-irons 10 or the like. A

If desired, the changing of the rolling motion of the rings into a sliding motion may be afforded otherwise than hereinbefore described, for instance by extending the U- irons 10 into the hardening liquid and twisting the lower part of said irons in their longitudinal direction so that their side flanges obtain a gradually increasing inclination with respect to the bottom surface of the incline 1. It is obvious that the rings 2will 'thus be caused to lean, more and more,

against the said bottom surface, so that they will finally turn over and slide in a lying position on the incline, which in such case may be rectilinear in shape.

What I claim is 1. In a hardening device for annular bodies, the combination of an incline on which the bodies roll into the hardening liquid, the lower part of said incline being formed so as to cause the rolling bodies to tilt and slide on the incline in a lying position, and means for continuously'removing the hardened bodies from the hardening liquid, substantially as described.

2. In a hardening device for annular bodies, the combination of an incline on which the bodies roll into the hardening liquid, the lower part of said incline being bent laterally so as to form a laterally inclined screw thread, sa1d lower part ofthe incline being provided with an extension 3. In a hardening device for annular bodies, the combination of an incline having partition walls between which the bodies roll into the hardening liquid, the lower parts of the said partition walls having a gradually increasing inclination against the bottom surface of the incline by which the rolling bodies are caused to tilt and slide on the incline in a lying position, and means for continuously removing the hardened bodies from the hardening liquid, substantially as described.

4. In a hardening device for annular bodies, the combinationof an incline on which the bodies roll into the hardening liquid, the lower part of said incline being formed so as to cause the rolling bodies to tilt and slide on the incline in a lying position, and a conveying mechanism comprising a transport band, sa1d transport 'band being provided with pins passing through an aperture in the lower end of the incline, whereby thesaid pins catch the annular bodies and remove them from the hardening liquid, substantially as described. V

In testimony whereof I affix my signature.

:AXEL GUSTAF EMANUEL HULTGREN. 

